Feedstock Utilization

The production of biofuels, ethanol and biodiesel presented above is derived from several feedstock sources. In the case of ethanol, there is not only a differentiation between corn grain and cellulosic, but there are also several sources of cellulosic feedstock.

It would be helpful to consider the path to achieve the ethanol goal, as it actually becomes the demand that needs to be satisfied by the agricultural sector. This path is presented in Figure 9. The path includes the milestones of the analysis, which are 10 billion gallons by 2010, 30 billion gallons by 2020, and finally 60 billion gallons of ethanol by 2030.

Billion Gallons

Billion Gallons

2005 2010 2015 2020 2025 2030

Figure 9. Ethanol Production Path Under the ETH60 Scenario.

2005 2010 2015 2020 2025 2030

Figure 9. Ethanol Production Path Under the ETH60 Scenario.

Regarding feedstock utilization through the year 2012, corn grain continues to be the base of ethanol production. Given the goals presented in this study and their timing, the first 12

billion gallons of ethanol are produced from corn grain. In later years, the increase of corn grain for ethanol slows down and remains flat after 2020 (Figure 10).

Billion Gallons 60

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